the diagnostician determines that the car cannot be driven in street traffic

Failed NCT Test? Don’t Panic – Here’s What You Need to Know

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So, you’ve just had your car in for its NCT, and… it didn’t pass. First of all – don’t worry. You’re not the only one. Thousands of drivers across Dublin fail their NCT every year, often for minor issues that can be sorted quickly and affordably.At Michael and Sons Auto Service in Tallaght, we help drivers get back on the road fast after a failed NCT test. In this post, we’ll walk you through what it means, what to do next, and how to avoid failing again.

Why Cars Fail the NCT in Ireland

According to the RSA (Road Safety Authority), the most common reasons for NCT failures include:

  •  Brake imbalance or worn pads/discs
  •  Faulty or misaligned headlights
  • Tyres below the legal tread depth
  •  Exhaust or emissions issues
  •  Suspension wear – especially coil springs and shocks
  •  Dashboard warning lights
  •  Steering or alignment problems
  •  Seatbelt or airbag faults

Many of these are simple issues that a pre-NCT check would catch in advance – and often can be repaired the same day.

What Happens After You Fail the NCT?

When your car fails, you’ll receive a Vehicle Inspection Report from the test centre. This outlines exactly what went wrong – including “Fail”, “Visual Fail”, and “Advisory” items.You have 30 days to complete the repairs and return for a retest. If it’s only a visual issue (like a broken light or low fluid), you may be eligible for a free retest – as long as it’s done at the same centre within that time.

What to Do Next After a Failed NCT Test

Here’s what we recommend:

1. Review the Report

Read through the failure points carefully. If you’re unsure what something means, just call us – we’ll explain it for free.

2. Book an NCT Repair Assessment

Bring the report and your car to Michael and Sons Auto. We’ll go through the list, inspect the car, and give you a clear quote for any work needed.

3. Get the Repairs Done

Most common NCT issues can be fixed on the same day, especially things like bulbs, brake pads, wipers, tyres, or suspension arms.

4. Return for the Retest

Once we’ve completed the work, you can book the retest directly or we can help guide you through the booking process.

Why Use Michael and Sons for NCT Repairs?

  •  Experienced mechanics who know the NCT inside out
  •  Fast turnaround for common failure points
  •  Clear communication – no upselling
  •  Pre-NCT checks available to avoid failure next time
  •  All work guaranteed and NCT-compliant
  •  Tallaght location – close to NCT centres like Deansgrange, Blarney, and Naas Road

We don’t just “fix the list” – we make sure your car is safe, roadworthy, and ready to pass with no stress.

Preventing Future NCT Failures

Next time, consider booking a Pre-NCT Check with us 1–2 weeks before your test. We’ll inspect the key items that most often cause failure and flag anything that could get in the way of a pass.

It’s a small investment that can save you time, hassle, and the cost of a retest.

Real Stories from Dublin Drivers

“Failed the NCT due to brakes and a light. Michael and Sons had it fixed by lunchtime. Passed the retest no problem. Cheers lads!” – Tony R., Clondalkin

“Didn’t know what half the items on the fail sheet meant. Marcel explained it clearly and had everything sorted same day. Proper garage.” – Aisling M., Walkinstown

Book Your NCT Repairs or Pre-Check Today

If you’ve failed your NCT test, don’t leave it until the last minute. Call Michael and Sons Auto Service in Tallaght today. We’ll help you:

  • Understand your report
  • Fix the issues (big or small)

Get you retested and road-ready